Doorstop



, 15, 9 J. A, PARADISE 2,342,060

DOOR STOP Filed Oct. 5, 1942 INVENTOR .JQSEPH A. PARADISE.

A1TORNEY Patented Feb. 15, 1944 DOORSTOP Joseph A. Paradise, Detroit, Mich.

Application October 5, 1942,Serial No. 460,908

2 ClaimS.

My invention pertains to devices, which may be generally described as automatic door stops or door checks, and which are employed for the purpose of retaining doors in an open position.

While a number of such devices are already known, the door stop of my invention has certain desirable features not possessed by conventional door stops, and is capable of performing a certain useful function which ordinary door stops of this kind, cannot render. Specifically the device of my invention serves not only as an automatic door stop but aids in closing the door when it is desired to have it closed.

Another object of my invention is to provide a door stop including the above advantage, in a simple form, requiring no adjustments and unlikely to get out of order once it has been properly installed. 7

I shall now describe my invention with reference to the accompanying drawing, in which,

Fig. 1 is a side elevation of my improved door stop;

Fig. 2 is a perspective view of my improved door stop;

Fig. 3 is a side elevation of my improved door stop in its operative position, including a fragmentary view of a door, held in a stationary position by said door stop.

Similar numerals refer to throughout the several views.

In its preferred form, the door stop of my invention is made out of one strip of resilient metal such as, for instance, steel or bronze. As shaped out of said strip, it includes a horizontally disposed section I l which is provided with a perforation l2 for a screw l3, by means of which my door stop, may, at this side, be attached to floor Ill. Said section H extends into a gentle incline M which towards its end rises sharply and turns down to form a catch I 5. In its continuation, the strip out of which my door stop is made, includes a horizontal section It of a length which somewhat exceeds the thickness of the door to be engaged by my door stop.

Up to this point my door stop is similar to other door stops which are already known. Howsimilar parts I ever, beginning at the end of section It, on the side further removed from the door before it comes into engagement with the door stop, the latter includes two loops l1 and I8, made by bending the strip out of which the stop is made, back upon itself, to form loop ll, by reversing the direction of the strip in a hairpin turn l9 and by forming the other loop I8 in the same manner.

As the open sides of the loops are quite narrow,

and the diameters of the loops are comparatively large, the loops present together a fan-shaped configuration, extending on one side into the space directly above said section 16, while the other side of said configuration, at a point marked 20, comes close to the floor to which the door stop is attached. The formation, I wish to point out, is important for reasons which will presently become apparent. From said point 20, the strip forming the door stop, extends in a curve bent inwardly towards the center of loop l8 and returns to floor I0 to form a horizontal end section 22. This is bent outwardly and is provided with a perforation 23 for a fastening screw 2 I shall now describe the operation of my door stop. The door stop is intended to be mounted on the floor in such a position with respect to the door which it is to check, that its longitudinal axis will be at right angle to the surface of the door at the point of engagement with said door. When the door, indicated by numeral 25 in Fig. 3, is swung on its hinges towards my door stop, its lower end passes over section II, and coming in contact with incline l4, depresses it down until it clears catch [5, to occupy the space directly above section l6.

Owing to its resiliency, catch l5, relieved of pressure by the door, rises to its original position preventing the door from swinging back. On the other hand, further progress of the door in the direction'in which the door was swinging, is arrested by loop II, which not only is in'the way of said door, but normally occupies space directly above said section [6. However, the weight of the swinging door and its momentum is sufficient to deflect loop ll out of its way, causing it in turn to deflect loop it towards floor I6, and to compress both loops between said floor and said door. As a result thereof, said door, while checked by catch I5, is under constant tension of said loops H and E8, in the direction opposite to the initial swing of the door. The position of the door, between the catch and the loops, with said loops being distorted and compressed between the door and the floor, is shown in Fig. 3.

It is obvious that some changes may be made in the form of my door stop, without departing from the inventive principle of my invention, like varying the number of loops or their form or substituting independent springs for said loops, and so forth. What I, therefore, Wish to claim is as follows:

1. A door stop adapted to be mounted on the floor, and made of one strip of resilient metal, comprising in a straight line, a perforated horizontal section, forming one end of the door stop, a yieldable incline turning abrupty down to form a catch, a horizontal member disposed at a level below the top of the incline but normally above the level of the floor, the length of said member being in excess of the thickness of the door to be engaged by said door stop, a loop extending partly into the space above said member, a similar abutting loop, extending towards the floor, and a perforated section, turned outwardly and forming the other end of the door stop;

2. A door stop adapted to be mounted on a floor, made of one band of resilient material and comprising in a straight line, a yieldable incline, coming to a point to form a catch, a horizontal member, disposed below the level of the point but above the level of the floor, and being of a length corresponding to the thickness of the door to be engaged by the door stop, a plurality of loops abutting each other, one of which extends into the space over the horizontal member, and one of which abuts the floor, and means to afiix the door stop to the floor.

JOSEPH A. PARADISE. 

